anyone know anything about a 2 stroke atv - TwoWheelForum: Motorcycle and Sportbike forums
LinkBack Thread Tools Display Modes
post #1 of 2 (permalink) Old 04-14-2008, 10:11 PM Thread Starter
Join Date: Mar 2007
Posts: 646
anyone know anything about a 2 stroke atv

I just bought a 98 blaster with a vito's 240 big bore kit, trenga racing carb, jet kit, k&n filter, and a full fmf pipe. The top end was just rebuilt like 2 hrs ago and know it sounds like it is knocking in the top end. Any ideas on what it could be?
jnn7404 is offline  
Sponsored Links
post #2 of 2 (permalink) Old 04-15-2008, 08:04 PM
adjunct moderator
indianaroadracer's Avatar
Join Date: Feb 2008
Location: Winona Lake, IN
Posts: 131
Usually when a piston "blows up" it sends all kinds of debris down by the crank. Its possible the crank needed rebuilt but wasn't and now you have a bad crank pin/rod/main bearing.
Another possibility is the ports were champhered well enough.

Hard to say without working on the quad myself.
indianaroadracer is offline  
Sponsored Links

Quick Reply

Register Now

In order to be able to post messages on the TwoWheelForum: Motorcycle and Sportbike forums forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Please enter a password for your user account. Note that passwords are case-sensitive.


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:


Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode

Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

For the best viewing experience please update your browser to Google Chrome